Support

Rename a topic

By default, any user can rename any topic within a stream, and
organization administrators can additionally move topics from one
stream to another, or move a subset of messages to a topic from one
stream to another.

Rename a topic

Select the first option. It may be called View source / Edit topic,
or simply Edit. If it's called View source, then you are not
allowed to edit the topic of that message.

Edit the topic.

Pick Change previous and following messages to this topic from the
dropdown to the right.

Click Save.

Move a topic to another stream

This feature is only available to organization administrators.

Organization administrators can move a topic from one public stream to
another.

None

Hover over a stream in the left sidebar.

Click on the down chevron ().

Select Move <topic name> to another stream.

Select the destination stream for the topic from the streams dropdown list.

(Optional) Change the topic.

Click Move topic.

Move message(s) in a topic to another stream

This feature is only available to organization administrators.

Organization administrators can also move only a subset of messages
from a topic to another stream.

None

Hover over a message to reveal three icons on the right.

Click the down chevron ().

Select the first option. It may be called View source / Edit topic,
or simply Edit. If it's called View source, then you are not
allowed to edit the stream of that message.

Select the destination stream for the message from the streams dropdown list.

(Optional) Change the topic.

A dropdown with three options will appear to the right:
Change only this message topic, Change later messages to this topic, and
Change previous and following messages to this topic. Pick the appropriate
option.

Click Save.

Note: You cannot edit content of a message while changing its stream.

We're here to help! Email us at support@zulip.com with questions, feedback, or feature requests.